Though there were a few awkward moments, the grandmas did have some very wise words to say about sex. "Talking about sex is a natural thing," one grandma said. Indeed, their two main pieces of advice were to experiment with your partner and to make sure you're comfortable talking about it.

Wisdom aside, nothing was really off-limits. Just check out the video above. Yes, they talked "69," multiple lovers and even why they'd rather receive than give. You know what we're talking about.